Siemens ET 7Y Series Spezifikationen PDF herunterladen (Seite 154)

Functions of the IM 151-7 CPU

8-42

ET 200S IM 151-7 CPU Interface Module

A5E00058783-04

8.11 Blocks

This section provides an overview of the blocks that run in the IM 151-7 CPU.

The operating system is designed for event-driven processing of the user program.

The following tables show which organization blocks (OBs) the operating system

automatically invokes in response to which events.

More information

You will find a detailed description of the blocks in the

System and Standard Functions Reference Manual. There is an overview of all the

STEP 7 documentation in the ET 200S Distributed I/O System manual.

Overview of all the blocks

Table 8-16 Overview of the blocks

Block

Number Area Maximum size Remarks

OB 17 – 16 kB All the possible OBs are found in the

Instruction list.

FC 512 0-511 –

FB 512 0-511 –

DB 511 1-511 0 is reserved

SFC 61 –

–

All SFCs for the CPU are found in the

Instruction list.

SFB 11 –

–

All SFBs for the CPU are found in the

Instruction list.

A maximum of 1024 blocks (number of FBs + FCs + DBs) can be loaded in each

IM 151-7 CPU.

1 2 ... 149 150 151 152 153 154 155 156 157 158 159 ... 213 214

Keine Kommentare

Siemens ET 7Y Series Spezifikationen Seite 154